From Pot to Kratom, He’s Always Using Something

When your loved one is using drugs almost continuously, there are few opportunities to reward non-use. You are right about this. You are also correct in not rewarding moments of withdrawal, that period you describe when your son first gets up and is agitated and verbally abusive.
What is Community Reinforcement and Family Training (CRAFT)?

CRAFT is a scientifically proven alternative approach to Al-Anon, for families struggling with the addiction of a loved one.